(1)The data provided in the above table based on the critical design case of the Allowable Stress Design and the Ultimate Limit State Design. The Mild steel is Grade 300 with a yielding strength of 320 MPa according to AS3679-2006, the allowable design stress is 211 MPa.
(2) U: Safe Superimposed Uniformly Distributed Load – kPa
(3) D: Deflection due to the Safe Superimposed Load – mm
(4) D4: Deflection due to 4 kPa applied load – mm
(5) Span shown to the left of the heavy line have a deflection of less than 5mm for a 4kPa UDL
(6) Add 14% to the mass provided for galvanising and fabrication banding bars
(7) *Product is low use (held in small quantities or not commonly stocked) please contact Steel Grating Ltd for information on quantities regarding these items.
